call humana at 1-800-808-4003. so you can focus on what really matters. if we want to improve our schools... ... what should we invest in? maybe new buildings? what about updated equipment? they can help, but recent research shows... ... nothing transforms schools like investing in advanced teacher education. let's build a strong foundation. let's invest in our teachers so they can inspire our students. let's solve this. >>> senators often throw out the filibuster threat on capitol hill but we vice president actual -- haven't between one in action and the rule cannen confusing. >> the chairman will gavel them off if he stops talking or sits. >> excuse me? >> what are you doing? >> i didn't know if i'm supposed to -- >> we usually don't raise our hands. >> it's not the worst idea in the world. >> the senator is allowed to yield for a question without yielding the floor. >> what do you mean. >> he's allowed to yield for a question without yielding the floor. >> i was in the house. i know nothing about senate rules. >> will lawmakers yield for filibuster ref